Dust-collector.



H. A. KNOS. V DUST COLLECTOR. APPLICATION FIRED MAY 25, 1908 Patented Jan. 12, 1909.

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HUGO A. KNOS, OF BELLEVUE, OHIO DUST-COLLECTOR.

To all whom it may concern:

Be it known that I, HUGO A. KNos, a citizen of the United States, residing at Bellevue, in the county of Huron and State of hi0, have invented certain new and useful Improvements in Dust-Collectors, of which the following is a specification, reference being had therein to the accompanying drawlugs.

This invention relates to dust collectors, and is designed more particularly for use in connection with polishing ap )aratus for lows, steel shovels and similar articles. low castings and articles of this character are usually polished by means of an abrasive wheel and the operation produces great quantities of dust which is not only very dis agreeable, but is injurious to the health of the operator.

The object of the present invention is to provide means f r collecting this dust and removing the sax .16 without in any manner interfering with the operation of the polishing a paratus, thereby entirely eliminating the disagreeable and unhealthful features of the work.

With this object in view my invention consists in certain novel features of construction and in certain parts and combinations hereinafter to be described, and then more par ticularly pointed out in the claims.

In the accompanying drawings, Figure- 1 is a longitudina sectional view, taken centrally through a dust collector embodying my lnvention; Fig. 2 is a front elevation of the same; and Fig. 3 is a detail view of the movable support for the rack.

In these drawings 1 have illustrated the preferred form of my invention and have shown the same as comprising a casing or receptacle 1 mounted on suitable supports 2 and having one end 0 en and the top, bottom and sides thereof 0 osed. Mounted near the open end of the receptacle is the usual abrasive wheel 3 which is carried by a shaft 4, which, In turn, supported in the usual manner.

The receptacle 1 may be of any suitable construction and shape, but I prefer to construct the same of sheet metal and to form the same rectangular in cross section with its sidewalls converging away from the open end thereof.

The receptacle is provided with a suitable outlet 5, to which is connected a suction pipe 6, by means of which a suction is created Specification of Letters Patent. Application filed May 25, 1908. Serial Ilo. 434,926. A

Patented Jan. 12, 1909.

within the receptacle 1. This outlet 5 may be arranged at any suitable point in the casing, but I have, in the present instance, shown the same as formed in tlie top wall of the casing and near the smaller end thereof.

A hood or guard 7 is mounted on the top wall of the casing near the open end thereof and extends about the upper side of the abrasive wheel 3. This guard or hood 7 prefer.- ably has one of its side walls hinged, shown at 8, to permit the same to be swung outwardly when it is desired to remove the abrasive wheel from the shaft 1 or to mount the same thereon. i

The casting or other work which it is desired to polish is supported against the lower side of the abrasive wheel 3 by means of a work-holder or rack 9 which is movablv mounted beneath the same. portions of the work to he brought into engagement with the abrasive wheel 8, it is necessary that the supporting rack 9 should be capable of lateral, longitudinal and vertical anovements relatively to the abrasive wheel and should also have a rotary movement about its longitudinal axis, thus enabling the work to be turned at any desired angle to the wheel. To this end I have pro vided a rack, one end. of which is adapted to extendinto the rece )tacle 1 and which is so mounted as to enable the same to have the necessary movements relatively to the abra sive wheel. This is preferably accomplished by providing a suitable guide within the receptacle 1, upon which there is mounted a support for the end. of the racktl, and, in the present instance,-I have shown this guide as a double track com rising bars 10 supported from the top wall 0' the casing 1 by means of depending arms or supports 11 and adapted to support a roller carrier or truck 12 having a depending arm. or bar 13 provided with one or more apertures 14 adapted to receive a rod 15 at theforward or inner end of therack 9. This rod is of a slightly'smaller diameter than the aperture 14 and is retained therein in any suitable manner, as by means ola key 16. Thus, it will be seen that the rack can he moved about the pivotal center formed at the point of support of the rod 15 on the bar 13 in either a vertical or a lateral direction, or it can be turned about its longitudinal axis. Further, it will be a parent that free longitudinal movement of t e rack is permitted by the movable support or roller carrier 12 which travels freely upon To enable all the double trace; and also, that the rack canbe adjusted vertically of the casing by in serting the rod 15, carried by the rack, in difierent apertures 14 of the bar 13.

In the operation of the device the abrasive wheel is rotated at a high rate of speedin the direction indicated by the arrow, and, the work being supported against the lower edge thereof, it will be apparent that the dustwill be thrown from the Wheel and from the work in the direction of the receptacle'where it is taken up by the suction created within the receptacle and discharged. through the outlet pipe 6. This suction. being of suflicient strength to take up the dustat the point of contact of the wheel with the workand the hood 7 reventing any particles of dust or materia which may adhere to the wheel from being thrown off the upper ed e thereof, it will be seen that all. the dust wil. be taken up by the collector-and that none of the same will be permitted to escape. Further, it will be seen that the supporting rack for the work is so mounted as to enable. the abrasive wheel to be en ported close to the open side of the receptac e 1, and, at the same time, to allow the rack theinecessary movement to enable all parts oi the worlrrito'bc brought into engagement with the abrasive wheel. A. further advantage accruing from the use of my dust collector is that it enables the abrasive material or emery duet, which is removed from the abrasive wheel, to be.col' lected and again used either in the manufacture of other abrasive wheels or anlabrasive powder or dust. By thus collecting the emery dust a considerable saving is made in the cost of the operation of the polishing apparatus. I wish it to be understood that I do not desire to be limited to the details of construc-- tion shown and described, for obvious modi fications will occur to a person skilled in the art.

thus fully described my invention, what I claim. as new and desire to secure by Letters Fatent, is

l. A device of the character described comprising an. ttbIEI-Sl'VQWllOEl, a dust-receiv receptacle supported in the rear 1 said wheel, and a worl said receptacle and adapted to be moved toward and away from the lower edge of said wheel and transversely to its axis of rotation.

,2. A device of the character described, comprising an abrasive wheel, a dust-rccciving receptacle supported near said wheel, a-

Worlcsupport mounted near said receptacle with one end extending into the same and adapted to be moved toward and away from said wheel and transversely to its axis of retation.

3. A device of the character described comprising abrasive wheel, a dust-receiving receptacle supper near said wheel, and

support mounted near seas-cc l a work-support having one end 'movably mounted within said rece tacle.

4. A device of the c aracter described comprising an abrasive wheel, a dust-receiving receptacle supported near said wheel work-support having one end movabhy mounted Within said receptacle, and means for creating a suction within said receptacle.

5. A device of the character described comprising an abrasive wheel, a dust-receiving receptacle supported near said Wheel, a worlosupport, a guide within said receptacle, means'for movably supporting said worksupport upon said uide, and means for creating a suction within said receptacle.

6. A device of the character described comprising an abrasive wheel, a dust-receiving receptaclesupported near said wheel, a work-su port, a track supported withinsaid rcceptac e, a carrier movably mounted on said track, a supporting member carried by said carrienhreans for connecting said Worksupport to said supporting member, and means for creating a suction within said re' -ceptacle.

7. A device of the character described comprising an abrasive wheel, a dust-receiving receptacle supported near said wheel, a. work-s11 port, a track supported withinsaid receptacle, a roller carrier mountedon said track, an apertured bar extending from said parrier, a rod secured to said work-support and adapted to extend through the aperture in said bar, means for retaining said rod Within said aperture, and means for creating a suction within saidreceptaclet 8. A device of the character described comprising an abrasive Wheel, a dust-receiving receptacle supported near said wheel, a

suction. pipe connected to that end of the receptacic removed from said wheel, a 'worksupoort, a track an ported from the upper wall of saio r'ecepta'clia, a roller carrier mounted on said track, a supporting bar depending from said roller carrier and having a series of apertures therein, a rod secured to one end of said work-support and adapted to enter any one of said a. ertures, and means for securing said rod wit. in said aperture.

9. A device of the character described comprising a receptacle having one end open and its side walls converging away from said open end, an abrasive wheel mounted near the open end or said receptacle, a workholder, a guide within said receptacle, a mov able support mounted on said guide, means for loosely connecting one end of said work 'holder to said movable support, and means located near the small end of said receptacle for creating a suction therein.

10. A device of the character described comprising a receptacle having one endopen and its side Walls converging away from'said open end, an abrasive wheel mounted near. the open end of said receptacle, a Workholder, a guide within said receptacle, a mov able support mounted on said guide, means for loosely connectin one end of said workholder to said mova le support, means located near the small end of said receptacle for creating a suction therein, and a hood carried b said receptacle and extending over said a rasive wheel.

11. A device of the charai ter'described comprising a receptacle having one end open and its side Walls converging away from said 0 en end,an abrasive wheel mounted near t e open end of said receptacle, a workholder, a guide Within'said receptacle, a movable sup ort mounted on said guide-,. means for loose y connectin one end of said Workholder to said mova 1e support means located near the small end of said receptacle for creating a suction therein, and a hood carried by said receptacle and extending over said abrasive wheel, said hood having one of its side walls'hinged thereto. 1

12. A device of the character described comprising an abrasive wheel, a dust-receiving receptacle supported near said wheel, and a work-support pivotally mounted near said receptacle.

13. A device of the character described comprising an abrasive wheel, a dust-receiving receptacle sup orted near said wheel, and a work support aving one end pivotally mounted within said receptacle.

In testimony whereof, I affix my signature in presence of two witnesses.

- HUGO A. KNOS.

Witnesses: E, A. KENNY, E. H. ERDRIOHi 

